[Swimmer]

Diazinon is the answer. Use on the spayers that doesn't have the per ounze per gallon dial. Use the one the has the long nozzle and allows the spray to go 20' or higher if the prssure is up. Put four ounzes of Daizinon per 8 gallons and you'll kill them little bastidges...........Liquid Sevin also works real good with the one galons spayers one ounze per gallon. The Sevin is a little thick to get it to miz really well in the long nozzle spayers but it does a good job too.